Directory Industries Places KnowledgeComparisonsSoon

Sign in Check visibility

Recognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

Product

Pricing
Directory
Industries
Trust Score

Company

About
Partner program
Contact
Legal

© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,888 companies indexed · Last updated: today

DirectoryCrafts & TradesPlumbing & Building ServicesTramelanStalder & Zürcher SA

Verified· 3 sourcesTrust Score

Summary

About the company

The core activity of Stalder & Zürcher SA is the planning, installation and maintenance of heating, plumbing and solar systems.

AI-generated

Offering

Products & services

Industry:Plumbing & Building ServicesSpecialized Construction Installations

Outbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub

4.2/5

Stalder & Zürcher SA

✓ Offered3

Heating system installation

Heating system installation with heat pumps, oil, pellet or wood-chip systems, work planning, on-site consultation, quotation and annual inspection.

Sanitary installations

Sanitary installations for bathrooms and showers, on-site surveys, taking measurements, planning, offer for new bathrooms and visit to the showroom.

Solar installations

Solar installations for heat and domestic hot water production, study and planning, sizing, flat-plate and tubular collectors.

Trust & reputation

ranQ Trust Score of Stalder & Zürcher SA: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Stalder & Zürcher SA scores 71.3 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.

x

CriterionValueWeight

Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.79.424%
Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.52.910%
Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.70.08%

Stalder & Zürcher SA scores 85.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.

x

CriterionValueWeight

Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%

Stalder & Zürcher SA scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.

x

CriterionValueWeight

Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%

Stalder & Zürcher SA scores 3.4 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.

x

CriterionValueWeight

Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.3.44%
Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

Qualifications+0.00

Stalder & Zürcher SA reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 7 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating

5

of 5

Aggregated from 7 reviews across all connected sources

Sources

GGoogle57

★TrustpilotSoon

PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

No knowledge articles yet

Once Stalder & Zürcher SA has claimed this profile, we'll publish editorial articles and case studies here together.

Comparisons

Stalder & Zürcher SA in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Stalder & Zürcher SA by reviews, experience and specialisations.

Is this your company?

Claim the company profile of Stalder & Zürcher SA to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Location

Rue du Midi 14

2720 Tramelan

At a glance

Legal form: Corporation
UID: CHE-107.276.621
Founded: 1983 · 43 years
Last commercial register change: December 8, 2009
Employees: 1 to 10

Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.

100.0

6%

Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%

Full methodology

Similar companies

Peter Serini AG

Lempen Gebäudetechnik AG

Wüthrich Haustechnik AG

Flückiger Heizung + Sanitär AG

Sanitech24 GmbH